Safety device.



I. W. LINGARD.

SAFETY DEVICE.

APPLICATION FILED OCT. 21, 1909.

Patented Mar.22, 1910.

2 SHEETS-SHEET l.

T. W. LINGARD.

SAFETY DEVICE.

APPLICATION-FILED OUT. 21, 1909- 952,915. Patented M11222, 1910.

2 SHEBTS-SHLET 2.

z/m/tmeowo THOMAS WM. LINGARLD, or OAK: e-aovn, ALABAMA. a

SAFETY DEVICE.

T all whom itmaycancer/t:

- Be it known that I, THOMAS LINGARD, a

' "citizen of the United States, residing at Oak Grove, in the county of Mobile and State of .Alabama, have invented certain new and useful Improvements in Safety Devices, of

" which the'followin'g is a. specification, reference being had thereinto the accompanying drawing.

The protecting means provided by this invention isfor use particularly with pneumatic tires, although it is in. addition susceptible for use with otheriresilient tires, such as cushion or the like. -The'arrangement ls'such that, when a tire of a vehicle bursts or is punctured or otherwise becomes deflated, re-

siliently resistive supports, arranged radially around the wheel, will be automatically brought into use as treads, thereby enabling the vehicle to continue itsprogress to a place Where repairs can conveniently be made or a "new the substituted. Further, in case of accident to a tire, when the vehicle is running at high speed, the supports will prevent sudden swerving'of the'vehicle from its course and injury to thevehicle and its occupants.

" Another function performed .byv the supports is that, when a vehicle using them ,is passing over a soft orsandy road, they prevent the,

wheels from sinking unduly deep. The supports also operateto prevent skidd-ingof a vehicle to the wheels of which they are att-ached. Clasps are also provided whichfengage the side of the tire along thewheelrim and form a reinforcement where there is. much wear on the t1re.. 1 'WVhen read in connection tion herein, the-details of construction and arrangement of parts contemplated by this invention will be apparent from the accompanying drawings, forming part hereof,

- fwherein an embodiment of theinvention is disclosed, for purposes'of illustration.

, I VVhile' the embodiment shown in the drawings is preferred, it is to be understood that the several instrumentalities of which the invention consists can be variously organized, withoutdeparting in the least from the nature and spirit of the invention, and that the invention is not limited to this-delineation. --L1ke reference-characters refer to corre- Specification of. Letters Patent.

with the descrip-.

PatentedMal-i. 22 19 10.

1 Application filed October 21, 1909. Serial-No. 523,836.

sponding parts in the several views of the drawings, of which Figure 1 1s a v ew of a sector of awheel having the safety device fitted thereto; Fig.

, 2 is a sectional view onthe line 2''-z,-Fig. 1;

Fig.3 is a top view of a support;'Fig, 4 is an interior view of a support, Fig; 5 is an out" side view of a tread member, and Fig. 6 is a view of a section of a clasp member.

Havingmore particular reference to the drawings, and tea wheel to which this invention is applied, 7 designates the hub of the wheel, 8 the spokes, 9 the rim, and lO a resilient tire, in this instance pneumatic. The safety devices of this invention are associated with the spokes,'riin and tire: of the wheel. Each device includes two tread members 11, each extending from a place on a spoke intermediate the'hub and rim on each side of the rim and tire and terminating at its outer end between the edge of the rim and the tread ofthe tire when the latter is normallyinflated or distended. The outer end of each tread member is formed with a laterally-extending treadl12,'having on its tread surface one or more cleats or ribs 13 to deter both circumferential and side slipping of the Wheel when the treads are in contact with the ground. The treads may bemade integral with the tread .menibers, or

preferably they. may be bolted orriveted thereto, in order to permit renewal without replacement of the entire member. Complementary, lugs .or stops 14 are positioned on the outer face of each tread member.

The inner; end of each tread member has drawn :from the wheel iwhendesired. The,

' wheelerim, landit has 'atendfencyjto force; v

i from a place intermediate the hub and-rim edge 21 dfi'e'aeu sefctionj betweefw'tlie arms seats against the tread member and betweenthe lugs or stops 14 thereof, when the two memberis bowed outwardly from the tread members between: the lugs 14 and theclas'ps; 18, forming spring portions 22 coil.

spring 23 is disposed on the spoke, between the hubl and clasp member, and it, has a tendency to force that member; ahdftvith i't' the t a m m rs by e ga e he ewi h. lugs' 14, outwardly A coilfspring: 243s disposed on the spoke betweenthe ic'lasp member and the clasp member toward thehubQ When thet'rei normally inflated be dis tended, the engagement of the 'cla'sp's18 with the tire, eer 'near' the 1 rim 'maintains' the; clasp -membersl,and, with the t11'e tread members" inyretractd, positions, where the treads dofnot co'rne in Contact with the" ground, erg'cejp't when ,the'wheels a re running on soft Tor sandy ffsknl. In 'theilatter' case,

such. contact does'o'ccur, and undue sinking of the wheels. is'iprevente'd. when a "tire bursts, ispuncturd, or other'wise becomes deflated, the gripping engagement of the clasps will be v"somewhat relieved, and the action of the springs 23 servetoextend the: treads beyond thetread surfaceof the dc flate'd tire'and' toplace them position to act as treads for' the wheel and toflrelieve' I the 'ti-re f of "its supporting; function. The weight Imposed on the wheel is thus auto matlcal ly' transferred j rrqi the tire' to thetread inembers'." The 'coil springs "24 operate to. prevent;the'forc ng of'the cla'sp' members against the wheel rim on the insideian'd the too' greateXtehsion of the tread members," the lugs' 61; stops 14 resulting in uniform outward 'and inward movement of'both clasp and tread members" as far as the *action' of the "coihs'prings' is concernedr Thecoil springs are In'a e'fsufliciently strong to'take up the weight usually imposed upon-the tread members." When, however, these'inembers .are so far retracted 'as'to lbring'the I clasps 18 againstthejwheel rinr, the outwardly-curved portions 22 of the clasp members, which are made of spring "material will (permit a vfurther and limited amountjof retraction in the" treads and take upyand prevent jar in the vehicle; v 1' bed 'my' invention, what Having thus de'scn I claim as new, and "desiretdsec'ure by Letwith a dcflatable; tire, "of a clasp engaging the tire, and a tread memloerv associated with said clasp and movable outwardlythereclasp outwardly when the tire is deflated, 'a'

tread associated with said clasp and movable outwardly therewith, and resilient means for limiting the outward movement of said clasp and tread. a

3. In a vehicle-wheel combination of a tread member'extending to a place adjacent a side of the tire, a spring "having a tendency to extend-'sald tread mem- Iatter'is' distended and operating to hold said tread memberinretracted position.

rim and a deflatable tire ontherinn-the comslots" in' I said clasp to position adjacent the when the tire is distended and top'erm'it ex tensionwhen thetireis deflated;

'rled thejs'poke' and having a tendency to binat'ionjof a' clasp pressing near the rim against'eachsi'de of the tire when the latter j is distended and extending around the 'rim fromfone side of the tire to the other,itread'r members one on each side 'extending'from a" place'intermediatethe hub and'rimthrough '95 sides 'of'the tire, and springs havinga tend-- epy= to extend said 'treadmembers--'out-- wardly', saidrlasp being arranged tohold saifdf tread members in're'tracted- 'po"sition"-" F having a hub and a rim 'and a deflatable tire on the mm, theber outwardly, and a clasp pressing near the 1 I ina against each side of the tlre when; the

4. In a vehicle wheel having a huband a 5. I'Ina 'vehic'le-wheelhaving 'a spokeand 4 'alrirn a deflatabletire on'therim,-a clasp I member associated with thespoke and'havv 10'5 agains't th'eitireon each side, a spring car force; said claspniember outwardly, and a tread member mr'ivalcle outwardly with said clasp member, the arrangenientfbeing such with the tire when; distended and thatthe spring will" force ithe tread m'enib'er'fout- "Wardly on deflation'of the tire; i 6. In a vehi'c le wheel having ahub and 'a' I rinrand a defiatable tireon' the riin,'a safety device comprislng'two tread members, each and rirn oneach side-"of theriin and tire and itsen'ds inwardly-ekt'ending limbs, clasps on sald llmbs bearing against the side of'the that, the tread retained' retracted. posii fi a ea o e Clasp member "e'xtendingffrom a'pla'ce intermediate the hub terminating Gitsf outer end between "the' edge of the rim andtrea'd'bf the'tirewhen I the latter '1"s distended, a claspmeixiber of" substantlallyU-shaped"formation'havingon tire near the rim whereby the clasp member In testimony whereof I affix my signature is nornally Ilia]?1 in ilixed position, means asin presence of two witnesses.

sociate wit t e c as member and tread y r members whereby mohment in one causes THOMAS LIAGARD' movement in the other, and a spring having Witnesses:

a, tendency to extend said tread members M. SHERRY, I

outwardly. I R. M. SMITH. 

